“…Although it is not considered an active drug, it has been well-established that its metabolites, such as methylselenol and MSP, display antitumoral and antiproliferative properties [188]. The significant role of methylselenol in antitumoral treatment lies in its capacity to induce cell death and it is recognized as one of the most cytotoxic Se compounds [23, 72,188,190,191]. Likewise, MSP also exhibits interesting properties, such as its ability to inhibit angiogenesis and histone deacetylase (HDAC) [72,192,193].…”